Embeded Youtube video not displaying when scaled

Question

I'm embeding a youtube video using this method:
var youtubevid = $("<iframe/>");
sym.$("vcontainer").append(youtubevid);
youtubevid.attr('type','text/html');
youtubevid.attr('width','540');
youtubevid.attr('height','380');
youtubevid.attr('src','http://www.youtube.com/embed/YNuG2ZhVrDI?rel=0&autoplay=1'); 
youtubevid.attr('frameborder','0');
youtubevid.attr('allowfullscreen','0');
This works fine.  But, as soon as I add the below code to scale the stage the video is just black(no controls either) but the audio plays.  Any idea why this would be happening?
var stageHeight = sym.$('Stage').height(); // Set a variable for the height of the stage
sym.$("#Stage").css({ // Set the transform origin so we always scale to the top left corner of the stage
"transform-origin":"0 0",
"-ms-transform-origin":"0 0",
"-webkit-transform-origin":"0 0",
"-moz-transform-origin":"0 0",
"-o-transform-origin":"0 0"
function scaleStage() {
    var stage = sym.$('Stage'); // Set a reusable variable to reference the stage
    var parent = sym.$('Stage').parent(); // Set a reusable variable to reference the parent container of the stage
    var parentWidth = stage.parent().width(); // Get the parent of the stage width
    var stageWidth = stage.width(); // Get the stage width
    var desiredWidth = Math.round(parentWidth * 1); // Set the new width of the stage as it scales
    var rescale = (desiredWidth / stageWidth); // Set a variable to calculate the new width of the stage as it scales
// Rescale the stage!
     stage.css('transform', 'scale(' + rescale + ')');
    stage.css(  '-o-transform', 'scale(' + rescale + ')');
     stage.css('-ms-transform', 'scale(' + rescale + ')');
    stage.css('-webkit-transform', 'scale(' + rescale + ')');
     stage.css('-moz-transform', 'scale(' + rescale + ')');
    stage.css('-o-transform', 'scale(' + rescale + ')');
    parent.height(stageHeight * rescale); // Reset the height of the parent container so the objects below it will reflow as the height adjusts
// Make it happen when the browser resizes
$(window).on('resize', function(){
     scaleStage();
// Make it happen when the page first loads
$(document).ready(function(){
    scaleStage();

Answer 1

Just curious why are manually scaling the stage when responsive scaling in available in Animate CC 3.0 itself?